Electrical Systems-slo

Voltage, amperage, and resistance are the 3 main electrical measurements.

All of the above are correct.

A switch controls the current flow to the resistor.

Solve volts = amps x resistance.

The power supply is one of the components of a simple circuit. The switch interrupts the current in a circuit.

Ceramics, plastics and rubbers are good insulators. They do not readily accept or give electrons.

Solenoids are used in many automotive applications, injectors and starter motors are 2 of these uses.

The data in a CAN is at a very high speed with respect to other data transfer in a vehicle.

Solve volts = amps x resistance.

Grounding is the act of completing the circuit to the negative part of the battery. Since the battery ground hooks up to the chassis, it can be used as a universal ground for the vehicle.

Alternators create AC voltage and need to be rectified to DC to be used in automobiles. You can not run an AC motor on DC volts, and vise versa.

A series circuit is when the resistances are sequentially in line with each other.

Wire size is very important. That is why the starter cables are the size they are. There are many gauges of wire size.

The reaction between the acid and the lead is what creates the movement of electrons.

Parallel circuits are when the resistances are side by side, with individual power supplies and grounds. The sum of all of the current draws in a parallel circuit is the total current draw in the circuit.

Copper has a low resistance. That is why it is used to carry electricity. Both the length and width of a wire will effect the amount of resistance it has.

The charge of electrons and protons in an atom cancel each other. Some atoms are already "happy", others want to accept electrons, and others what to give up theirs to have 8 valence electrons.

High resistance does not increase current flow. Solve ohms law for constant voltage and infinite resistance. The drop of voltage in a circuit is a measurement of how much resistance there is in the part of the circuit being measured.

Resistors or loads eat up the energy from the source. A voltmeter is used to measure the drop of voltage through a circuit.

A small amount of current is used to energize the windings in a relay. They can either be normally open or closed.

Three different types of resistors are listed in option A.

A shorted neutral safety switch could cause a slow cranking condition. The neutral safety switch is responsible for preventing the vehicle from starting in any gear other than park or neutral. If the switch is shorted, it may not properly engage or disengage, causing the starter to struggle when trying to crank the engine. On the other hand, over-advanced ignition timing, misaligned starter mounting, and a low battery state of charge can all contribute to a slow cranking condition.

CANs can be checked with either a digital multimeter or an osciliscope.

The sum of the currents in a parallel circuit equal the total draw of current. A series-parallel circuit is exactly that, a circuit with resistors in series and parallel.

A shorted diode in the alternator can cause a low alternator output. Diodes in an alternator are responsible for converting AC voltage to DC voltage. When a diode becomes shorted, it allows current to flow in the wrong direction, resulting in a decrease in the overall output of the alternator. This leads to a lower amperage being produced, which explains why the 100 ampere alternator is only producing 60 amps.

Fiber optic cables are made from plastic. They are very light and cheap to make. Pulses of light have the ability to transfer a large amount of data, very quickly, and with very little energy used.

AC stands for alternating current. DC stands for direct current and is not used in hybrid vehicles to run electric motors.